/// <summary>
/// Returns index of the child closest to the point.
/// </summary>
public int FindClosestChild(double [] point, bool normalize)
{
double[] normalizedPoint = point.ShallowCopy();
if (normalize)
{
VectorS.NormalizeByDiff(normalizedPoint, ValueMin, ValueBounds);
}
double minDist = double.MaxValue;
int best = -1;
for (int c = 0; c < Children.Length; ++c)
{
double dist = VectorS.SquaredDistance(Children[c].Center, normalizedPoint);
if (dist < minDist)
{
minDist = dist;
best = c;
}
}
return(best);
}
public void Test_SquaredDistance()
{
Assert.AreEqual(2, VectorS.SquaredDistance(new double[] { 1, 3 }, new double[] { 2, 4 }));
}